Odorless excavator



(No Model.) 2 2 Sheets-Sheet 2.

- W. H. FISH & E. E. DEAN.-

. ODORLESS EXGAVATOR. No. 345,425. Patented July 13, 1886.

MTNEEIEIEE- NVEt/ETEJRS elevation of the.device comprising our im-UNITEI) STATES PATENT OFFICE,

WILLIAM H. FISH AND EDGAR E. DEAN, OF BROOKTON, MASSACHUSETTS.

.ODORLESS E SPECIFICATION forming part of Letters Application filedMarch 25, 1886.

To all whom it may concern.-

Be it known that we, WILLIAM H. FISH and EDGAR E. DEAN, both ofBrockton, in the county of Plymouth and State of Massachusetts, haveinvented a new and useful Improvement in Odorless Excavators, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming a part of this specification,in explaining its nature.

The invention relates especially to means for burning the gases whichare expelled from the receiver of an odorless excavator while it isbeing filled. Heretofore these gases have been passed through a tank orcompartment containing disinfecting material, and have been allowed toescape therefrom into the open air. By our invention the receiver isconnected either directly with a gas-burning device of peculiarconstruction, hereinafter specified, or the deodorizing chamber or tankconnected therewith, as may be preferred, and the gas from the receiveris forced by the pressure employed in loading or filling it through theconnecting-pipes to the gas burning or destroying device. .Thisgas-burning device comprises, preferably, a naphtha-burner surmounted bya casing having a conical top provided with an opening, and the pipeconveying the gas from the receiver opens into this chamber in proximityto the flame, so that the gas is heated and compelled to unite with theflame of the burner, and is thus consumed.

Referring to the drawings, Figure 1 is a side provement; and Fig. 2 is avertical section of the gas burner or consumer, showing in elevation asection of the conducting pipe.

In the drawings ive have represented only the deodorizing-chamber ortank, a section of the pipe connecting it with the receiver or reservoirof the excavator, and the burner. A represents this tank. a is the pipeor tube through which the gases from the receiver or reservoir of theexcavator pass to the tank. B is a pipe or hose connecting thedeodorizing-chamber, or it may be the receiver or reservoir of theexcavator, with the burner O. This pipe, preferably, is wound in a coilone or two turns about the deodorizing-tank, if desired, and

"burner d.

XCAVATO R.

Patent No. 34:5,425, dated July 13, 1886.

Serial No. 196,510. (No model.)

connected by means of a coupling, 0, with a pipe, 0, of less bore thanthe said pipe 0. This is for the purpose of reducing the pressure of thegases, and'so that they shall not enterunder too great pressure theburningchamber of the gas-consumer. The pipe also has a valve, 0", forclosing the same. The burner has a base-section, d, which acts as areservoir for holding the naphtha or other burning-fluid. It is filledthrough the passage (1. Extending upward from the reservoir is the pipe01, having a controlling-valve, 01 which conveys the naphtha to thenaphtha- This naphtha-burner is surmount- 6 ed by a casing, E, the lowerpart, e, of which is substantially cylindrical in shape, and the upperpart of which is surmounted or covered by a conical section, 6, at thetop of which is arranged the opening 6". This casing has angle-pieces 6(provided with holes,) by which it is held to the flange e of the burnerby the rods 0 and nuts 6", and the burner is suspended above thereservoir by the rods 6 The casing E has a hole, 6, through which thepipe 7 5 a, connecting the burning-chamber E with the deodorizing tankor the receiver or reservoir of the excavator, passes. It will be seenthat the chamber is of a shape to force or compel the gas to eomminglewith the flame, as in burning the flame fills the entire opening at thetop of the conical section, and the gases from the excavator cannotescape from the chamber in any other way.

. In operation the proper connections are made and the burner lighted.The flame fills the chamber and extends upward through the hole 6completely filling the same. This causes the gases escaping from theconducting-pipe to be heated, and ignites them, so that 0 they areconsumed as they escape from the outlet of the conducting-pipe, and bycompelling the flame to concentrate in a small or comparatively smallaperture it is practically impossible for the escape of any uneomsumedgases from the burning-chamber.

The advantages of this invention are obvious.

Having thus fully described our invention, we claim and desire to secureby Letters Patloo ent of the United States-- 1. The combination of areceiver or reservoir of an excavator with a pipe or tube coni- 'nectingit with a gas-consumer, the said gasconsumer, for burning the gasesescaping from the excavator, comprising a burner for burn- 111gnaphtha'or other similar fluid, inclosed in a chamber contracted at thetop and provided with a small outlet, whereby the gases from 1 theexcavator are brought into 1 Contact with the flame of the burner,substantially as described.

1 2. The combination of areservoir or receiver of an emavatorv andconnecting pipe or tube, and a burner for assisting in the combustion ofgases escaping through said pipe or tube, having a chamber in which thegases commingle with vthev flame of the burner and are consumed, andmeans for varying the press and other like uses,eomprisinga tank forholding a burning-fluid,a burner, a close chamber about the burner,having a somewhat contracted outlet at the top, and a pipe or inletthrough which the gascs'to be consumed are conducted to vthe chamber,all substantially vas described.

' 7 WILLIAM H. FISH.

' 1 1 1 EDGARE. DEAN.

\Vitnesses: 1 1

F. F. RAYMOND, 211., FRED. iB. Down.

